Interacting electrons in a nearly straight quantum wire

Details Interacting electrons in a nearly straight quantum wire Interacting electrons in a nearly straight quantum wire

2000-07-26

arxiv.org/abs/cond-mat/0007420v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

NATO ARW Pecs 2000

Scientific paper

The conductance threshold of a clean nearly straight quantum wire in which a single electron is bound is studied. This exhibits spin-dependent conductance anomalies on the rising edge to the first conductance plateau, near G=0.25(2e^{2}/h) and G=0.7(2e^{2}/h), related to a singlet and triplet resonances respectively. We show that the problem may be mapped on to an Anderson-type of Hamiltonian and calculate the energy dependence of the energy parameters in the resulting model.

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